Window-sash frame.



No. 820,885. 'PATENTED MAY 15, 1906.

J. MUIR. WINDOW SASH FRAME.

APPLICATION FILED 0UT.29. 1904.

2 SHEETS-SHEET l.

Nrrnn STATES PATENT OFFICE.

JOHN MUIR, OF (JARLUKE, SCOTLAND.

WlNDOW-SASH FRAME.

To aZZ whom it may concern.-

Be it known that I, JOHN Mum, joiner, a subject of the King of Great Britain and Ireland, and a resident of Carluke, Lanarkshire, Scotland, have invented certain new and useful Improvements in Window-Sash Frames, of which the following is a specification, and for which an application for a patent has been filed in Great Britain, No. 2,200, bearing the date 29th day of January, 1904.

The object of my invention is to provide an improved window-pane and sashes therefor of the type which may be swung inward for cleaning, such that it may be readily manipulated, easily secured against burglars, proof against storm, and also such that, if desired, it will permit both window-sashes to be swung in at the same time in any vertical position which they may occupy.

The invention further consists of an improved manner of attaching and detaching the sashes to and from the weighted and. vertical'sliding stiles.

In the accompanying drawings, Figures 1 and 2 represent a horizontal section of a window-casing fitted with my improvements. Fig. 3 is a face view of such a window. Fig. 4 is a crosssection drawn to a smaller scale of the window of Figs. 1 and 2. Fig. 5 is a view of a side portion of one of the sliding stiles, showing the weight-cord connection. Figs. 6 and 7, respectively, are views of adjacent edges of a sash and a sliding stile from which it may be disconnected. Figs. 8 and 9 are enlarged views of the detachable fittings of Figs. 6'and 7, and Fig. 10 is a vertical section of the fittings of Fig. 9.

In the drawings the window-casing is pro vided with a stationary outer facing 9 9, vertically rooved on its inner projecting surface, with vertical rabbeted strips 7 7 similarly grooved and located on the inner part of the window and with a vertical parting-piece 6 6 in the mid-portion of the casing grooved on both of its projecting surfaces. In. the drawings I have shown two different widths of sashes 3 and 4-one width for the lower sash and a narrower width for the upper sash. I consequently locate the grooves on the parting-piece to fit such condition.

As shown, the groove 6 in the partingpiece for the inner or lower sash is a wide one, extending out from the center of the side of the window-casing, while the groove 6 for the upper and outer sash is narrow and lo- Specification of Letters Patent.

Application filed October 29 Patented May 15, 1906.

,1904. Serial No. 230,488-

cated nearer to the outer edge of the partingpiece. The'rabbeted strip 7 is provided with a groove 7, similar to the narrow groove 6 of the parting-piece, while the facing 9 is provided with a wide groove 9, similar to the wide groove 6 of the parting piece. By thus forming the grooves adequate means are provided to prevent ingress of the elements.

The sliding stiles 1 1 and 2 2 are formed. with grooves 12 for the weight-cords 10 on their inner surfaces and are formed to fit the grooved channels before described, while the inner surfaces of stiles 1 1 are formed with recessed plates 17, in which the projections of lugs on the sashes engage, as will be described hereinafter. The inner surfaces of two of the sliding stiles 2 2 are provided with hinges 13, by which they are attached to the sashes 3 4, while the opposite stiles 1 1 are each forme with an elongated recess 14, open near its upper end, and each provided with a projecting plate 17 having one long leg and one short one terminating at 16 in the open portion 14, as shown in Figs. 7 and 8.

Each side of the sash which is to lie adjacent to the stiles 1 1 is provided with a projecting plate and lug 18, having curved edges 19, adapted to be inserted into the recessed plates 17 by a combined horizontal and downward movement. The curved parts 19 by striking against the upper part of the plates 17 when lifted are automatically swung out horizontally, and thus aid in readily permitting the window-sash to be swung inwardly. Weights 11, as usual, are provided for counterbalancing the sashes, and they are attached to the sliding stiles.

Each sliding stile is provided with an opening adapted to receive a pin, while the partingpieces and rabbeted strips are provided with openings 22, adapted to register therewith. Pins 20 are secured by chains 21 in position for such use. The openings 22 may be provided with metal bushings 24 to prevent wear.

The pins shown in Fig. 1 are for use in looking the window by the insertion of one through the rabbeted strip 7 and stile 2 of the lower sash and the other through the parting-piece and stile 2 of the upper sash. The pins shown in Fig. 2 are for insertion to lock the stiles 1 and 1 with the rabbeted strips 7 and the parting-piece 6, so that when so locked the upward motion of the sash will cause the detachment of the projection of the sash from the plate of the stile, while at other times the stile will move upward with the sash impelled by the weight 11.

I claim as my invention 1. The combination with a window-casing, rabbeted strips on its inner side, and a grooved window-facing on its outer side, a partingpiece grooved on both sides, with grooves of different widths, sliding stiles between the parting-piece and the rabbeted strip and between the parting-piece and window-facings, a pair of window-sashes each hinged at one side of one of said sliding stiles, an elongated projection at the opposite side of said sash, and an elongated socket in the adjacent face of each stile into which said projection may be inserted by a combined horizontal and downward movement of the sash and projection, the grooves in the window-facings and rabbeted strip being of the same width as the inner and outer grooves of the parting-piece respectively.

2. In combination with a window-casing, sliding weight-controlled stiles, means for securing said stiles to said casing, a sash hinged at one side to one of said stiles, an elongated projection with a curved end on the unhinged side of said sash, a recessed plate on the stile adjacent thereto, an elongated portion at the lower end of said recessed plate open inwardly at its upper end, whereby upon securing the stile to the casing and vertically moving the sash, the curved end of the projection will abut against the upper limit of the recessed plate to cause the sash to be slightly forced inward.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN MU IR.

l/Vitnesses:

JOHN SIME, R. O. THOMSON. 

